Mesoscopic engineering materials for visual detection and selective removal of copper ions from drinking and waste water sources

2020 ◽  
pp. 124314
Author(s):  
H. Gomaa ◽  
M.A. Shenashen ◽  
A. Elbaz ◽  
H. Yamaguchi ◽  
M. Abdelmottaleb ◽  
...  
Keyword(s):  
Waste Water ◽  
Visual Detection ◽  
Copper Ions ◽  
Water Sources ◽  
Selective Removal ◽  
Engineering Materials

Synthesis of novel mixed matrix scaffolds and adsorption of copper ions of waste water

2010 ◽  
Vol 17 (1-3) ◽  
pp. 113-119 ◽  
Author(s):  
Tzu-Yang Hsien ◽  
Yi-Hsing Lien ◽  
Da-Ming Wang
Keyword(s):  
Waste Water ◽  
Copper Ions ◽  
Mixed Matrix

Synthesis of novel PVA crosslink mixed matrix scaffolds and adsorption of copper ions from waste water

2011 ◽  
Vol 34 (1-3) ◽  
pp. 354-360 ◽  
Author(s):  
Tzu-Yang Hsien ◽  
Yu-Ling Liu ◽  
Chin-Hsuan Huang ◽  
Po-Heng Lin ◽  
Da-Ming Wang
Keyword(s):  
Waste Water ◽  
Copper Ions ◽  
Mixed Matrix

scholarly journals Selective removal of cationic micro-pollutants using disulfide-linked network structures

RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 25969-25977 ◽  
Author(s):  
Mehmet Sahin Atas ◽  
Sami Dursun ◽  
Hasan Akyildiz ◽  
Murat Citir ◽  
Cafer T. Yavuz ◽  
...  
Keyword(s):  
Membrane Filtration ◽  
Water Sources ◽  
Selective Removal ◽  
Network Structures ◽  
Organic Polymers ◽  
Great Affinity ◽  
Micro Pollutants

Micropollutants are found in all water sources, even after thorough treatments that include membrane filtration. We have developed swellable di-sulfide covalent organic polymers (COPs) with great affinity towards cationic textile micropollutants.

Occurrence of perchlorate in drinking water sources in Korea

2009 ◽  
Vol 9 (2) ◽  
pp. 133-139 ◽  
Author(s):  
H. K. Kim ◽  
J. H. Kim ◽  
B. C. Lee ◽  
S. J. Yu ◽  
H. J. Kim
Keyword(s):  
Waste Water ◽  
Drinking Water ◽  
Water Treatment ◽  
River Basin ◽  
Tap Water ◽  
Water Sources ◽  
Nakdong River ◽  
Nakdong River Basin ◽  
Perchlorate Concentration ◽  
The Nakdong River

Perchlorate is an unregulated contaminant, and recently, many cases of perchlorate contamination have been reported in the US. Unregulated contaminants (e.g. perchlorate) in drinking water are also of significant concern in Korea. We investigated perchlorate levels in tap water, river water, and sewerage water at 4 major water sources in Korea from June 2006. Tap water samples in the Nakdong River basin contained high perchlorate levels. Of the other sampling sites, one at Daegu showed the highest perchlorate level, 22.3 μg/L. The first 2 investigations of raw water sources for drinking water in the Nakdong River basin, found relatively high perchlorate concentration, 18.7–95.6 μg/L and 4.0–25.6 μg/L. The high perchlorate concentration in the Nakdong River basin was possibly derived from waste water discharged by an LCD (liquid crystal display) manufacturing factory in Gumi. The perchlorate concentration of waste water from the nearby sewerage water treatment plant was 730–1,858 μg/L. We modified the waste water treatment operation system at the LCD factory to reduce the perchlorate emissions from this source. The modified treatment system reduced the perchlorate concentration in the final effluent to 40–70 μg/L. Source reduction was successfully achieved by the modified treatment process and by using a perchlorate-free etching reagent.

scholarly journals Galvanic Production Waste Water Treatment with Electro/coagulation Sludge in Terms of Nickel and Copper Ions

2013 ◽  
Author(s):  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Copper Ions ◽  
Waste Water Treatment ◽  
Waste Waters ◽  
Chemical Cleaning ◽  
Nickel Ions ◽  
Galvanic Production ◽  
Soluble Aluminum ◽  
Electro Coagulation

A possibility of nickel ions and copper ions recovery from galvanic waste waters with electro-coagulation sludge that is formed in the process of electro/chemical cleaning of galvanic drainage pipes with the use of soluble aluminum anodes has been demonstrated. Nickel ions recovery from the galvanic waste water in case of the optimal proportion of the sludge has reached at least 55 %.

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